December 8, 2025

The effects of methanol–diesel direct dual fuel injection at varying injection pressures in a compression ignition engine

Key Points

Engine performance improved with dual fuel injection compared to traditional methods, and methanol serves as a viable alternative fuel.
Maximum performance achieved at diesel IP of 270 bar and methanol IP of 230 bar, enhancing combustion efficiency.
Simulation using computational fluid dynamics validated experimental data, ensuring accuracy in analyzing emissions characteristics.
Supports use of methanol in internal combustion engines, highlighting potential benefits for sustainable agriculture.

Abstract

Purpose Direct injection of methanol and diesel benefits over other fuel-air mixture preparation strategies. Design/methodology/approach This work investigates the effect of methanol and diesel injection pressure (IP) on combustion and emissions characteristics. CONVERGE CFD (computational fluid dynamics) was used for simulations, and the combustion model was validated with the experimental data. Findings The analysis found that 270 bar diesel IP and 230 bar methanol IP showed better engine performance. Practical implications Methanol can be an alternative fuel for internal combustion engines. Originality/value This work in original. Social implications Sustainable agriculture and transport sector development. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2025-0090/

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The effects of methanol–diesel direct dual fuel injection at varying injection pressures in a compression ignition engine

Key Points

Abstract

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